Nothing...
What would cause my motor to rev high on initial cold start? Revs up to around 3k rpm real quick before falling back down. Only on cold starts? I'm guessing a sensor needs replacing?
Thoughts?
Thanks
Huh?Originally posted by JRE320
Nothing...
it could be a MAS or CTS or a vacuum leak.
nenad
2002 S500
2002 CLK430 w/ 5.5L swap
2002 SLK32 AMG
2003 S430 w/ 5.0L swap
2000 ML55 AMG
Mine revs to about 2500 in first and second gear when the engine is cool. I was under the impression that this is just how our cars heat up quickly?
My brothers bmw 320i e36 does the same thing.
Isn't it normal?
its normal, the car is fine after it shifts to 2nd.
Thanks.Originally posted by jnenad16
it could be a MAS or CTS or a vacuum leak.
nenad
I suspect a vacuum leak also, time to get the mitivac.
Thanks for the other replies, but I think you misunderstood what I was asking.
My car revs to about 2500rpm on start up, and it's been that way since we had it. Once it warms up, it only revs to about 1500 on start up.
2007 E350 Sport
1999 C230 Komp. with exhaust.